EP1014566A3 - Un amplificateur de classe D à deux modes de fonctionnement - Google Patents
Un amplificateur de classe D à deux modes de fonctionnement Download PDFInfo
- Publication number
- EP1014566A3 EP1014566A3 EP99403240A EP99403240A EP1014566A3 EP 1014566 A3 EP1014566 A3 EP 1014566A3 EP 99403240 A EP99403240 A EP 99403240A EP 99403240 A EP99403240 A EP 99403240A EP 1014566 A3 EP1014566 A3 EP 1014566A3
- Authority
- EP
- European Patent Office
- Prior art keywords
- class
- amplifier
- mode
- signal
- gates
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B15/00—Suppression or limitation of noise or interference
- H04B15/02—Reducing interference from electric apparatus by means located at or near the interfering apparatus
- H04B15/04—Reducing interference from electric apparatus by means located at or near the interfering apparatus the interference being caused by substantially sinusoidal oscillations, e.g. in a receiver or in a tape-recorder
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
- H03F1/02—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation
- H03F1/0205—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation in transistor amplifiers
- H03F1/0261—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation in transistor amplifiers with control of the polarisation voltage or current, e.g. gliding Class A
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
- H03F3/20—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers
- H03F3/21—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers with semiconductor devices only
- H03F3/217—Class D power amplifiers; Switching amplifiers
- H03F3/2171—Class D power amplifiers; Switching amplifiers with field-effect devices
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Amplifiers (AREA)
- Superheterodyne Receivers (AREA)
- Noise Elimination (AREA)
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11319798P | 1998-12-22 | 1998-12-22 | |
US113197P | 1998-12-22 | ||
US342376 | 1999-06-29 | ||
US09/342,376 US6587670B1 (en) | 1998-12-22 | 1999-06-29 | Dual mode class D amplifiers |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1014566A2 EP1014566A2 (fr) | 2000-06-28 |
EP1014566A3 true EP1014566A3 (fr) | 2000-08-09 |
Family
ID=26810789
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP99403240A Withdrawn EP1014566A3 (fr) | 1998-12-22 | 1999-12-21 | Un amplificateur de classe D à deux modes de fonctionnement |
Country Status (4)
Country | Link |
---|---|
US (3) | US6587670B1 (fr) |
EP (1) | EP1014566A3 (fr) |
JP (1) | JP2000196376A (fr) |
CN (1) | CN1267955A (fr) |
Families Citing this family (48)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6850623B1 (en) | 1999-10-29 | 2005-02-01 | American Technology Corporation | Parametric loudspeaker with improved phase characteristics |
US20050195985A1 (en) * | 1999-10-29 | 2005-09-08 | American Technology Corporation | Focused parametric array |
US6970503B1 (en) * | 2000-04-21 | 2005-11-29 | National Semiconductor Corporation | Apparatus and method for converting analog signal to pulse-width-modulated signal |
US7142819B1 (en) * | 2000-08-30 | 2006-11-28 | Cirrus Logic, Inc. | Circuits and methods for controlling switching noise in switched-mode circuits |
TW519792B (en) * | 2000-08-30 | 2003-02-01 | Cirrus Logic Inc | Circuits and methods for reducing interference from switched mode circuits |
JP2002204129A (ja) * | 2000-12-28 | 2002-07-19 | Niigata Seimitsu Kk | Am放送用増幅回路 |
US6819912B2 (en) * | 2001-11-05 | 2004-11-16 | Freescale Semiconductor, Inc. | Variable frequency switching amplifier and method therefor |
JP3894294B2 (ja) * | 2001-11-19 | 2007-03-14 | ソニー株式会社 | パワーアンプ |
CA2474257A1 (fr) * | 2002-01-18 | 2003-08-07 | American Technology Corporation | Modulateur-amplificateur |
JP3896894B2 (ja) | 2002-05-13 | 2007-03-22 | ソニー株式会社 | 電力増幅装置 |
JP2004048701A (ja) * | 2002-05-14 | 2004-02-12 | Sony Corp | オーディオ装置及びオーディオ装置の制御方法 |
US6943623B2 (en) * | 2002-06-11 | 2005-09-13 | Nokia Corporation | Amplification circuitry |
DK1406381T3 (da) * | 2002-10-02 | 2009-02-09 | Dialog Semiconductor Gmbh | Klasse-D forstærker med digital feedback |
WO2005002199A2 (fr) * | 2003-06-09 | 2005-01-06 | American Technology Corporation | Systeme et procede permettant de diffuser un contenu audiovisuel a l'intention d'une fils d'attente de clients |
US7564981B2 (en) * | 2003-10-23 | 2009-07-21 | American Technology Corporation | Method of adjusting linear parameters of a parametric ultrasonic signal to reduce non-linearities in decoupled audio output waves and system including same |
US7046727B2 (en) * | 2004-05-05 | 2006-05-16 | Monolithic Power Systems, Inc. | Method and apparatus for self-oscillating differential feedback class-D amplifier |
CN101002380A (zh) * | 2004-08-12 | 2007-07-18 | 皇家飞利浦电子股份有限公司 | 双模音频放大器 |
DE102004040278B4 (de) * | 2004-08-19 | 2012-07-12 | Infineon Technologies Ag | Polarmodulator für den Mobilfunk und Verfahren zur Polarmodulation eines Signals |
KR100638472B1 (ko) * | 2004-11-08 | 2006-10-26 | 삼성전자주식회사 | 디지털 오디오 증폭기, 그것을 포함하는 오디오 시스템,및 오디오 신호 증폭방법 |
US20060140644A1 (en) * | 2004-12-23 | 2006-06-29 | Paolella Arthur C | High performance, high efficiency fiber optic link for analog and RF systems |
US7728659B2 (en) * | 2005-01-28 | 2010-06-01 | Nxp B.V. | Arrangement for amplifying a PWM input signal |
US7315204B2 (en) * | 2005-07-08 | 2008-01-01 | National Semiconductor Corporation | Class AB-D audio power amplifier |
US7456686B2 (en) * | 2005-09-21 | 2008-11-25 | International Rectifier Corporation | Class AD audio amplifier |
JP4770361B2 (ja) * | 2005-09-26 | 2011-09-14 | 富士ゼロックス株式会社 | 容量性負荷の駆動回路、及び液滴吐出装置 |
US20070126871A1 (en) * | 2005-12-06 | 2007-06-07 | Henninger Paul E Iii | Modular surveillance camera system with self-identification capability |
US20070126872A1 (en) * | 2005-12-06 | 2007-06-07 | Michael Bolotine | Modular surveillance camera system |
JP5096710B2 (ja) * | 2006-08-29 | 2012-12-12 | パナソニック株式会社 | デジタルアンプ装置 |
WO2008072212A1 (fr) * | 2006-12-15 | 2008-06-19 | Bang & Olufsen Icepower A/S | Étage de puissance supplémentaire ajouté pour l'élimination des crachotements |
US8275137B1 (en) | 2007-03-22 | 2012-09-25 | Parametric Sound Corporation | Audio distortion correction for a parametric reproduction system |
KR100878155B1 (ko) | 2007-05-16 | 2009-01-12 | 삼성전자주식회사 | 오디오 시스템 및 이를 제어하는 방법 |
US7579908B2 (en) * | 2007-08-25 | 2009-08-25 | Freescale Semiconductor, Inc. | Digital audio amplifiers, electronic systems, and methods |
TWM327126U (en) | 2007-09-17 | 2008-02-11 | Princeton Technology Corp | Audio signal processing apparatus |
CN101399559B (zh) * | 2007-09-28 | 2013-01-02 | 普诚科技股份有限公司 | 声音信号处理装置 |
US8195118B2 (en) | 2008-07-15 | 2012-06-05 | Linear Signal, Inc. | Apparatus, system, and method for integrated phase shifting and amplitude control of phased array signals |
US8872719B2 (en) | 2009-11-09 | 2014-10-28 | Linear Signal, Inc. | Apparatus, system, and method for integrated modular phased array tile configuration |
CN101771384B (zh) * | 2009-12-31 | 2011-11-09 | 成都成电硅海科技股份有限公司 | 无死区时间的功率放大器输出级电路 |
CN102170272B (zh) * | 2010-02-25 | 2014-06-18 | 上海丽恒光微电子科技有限公司 | 功率放大器及功率放大器的桥式电路 |
US8344801B2 (en) * | 2010-04-02 | 2013-01-01 | Mks Instruments, Inc. | Variable class characteristic amplifier |
CN102611964B (zh) * | 2012-04-05 | 2014-09-03 | 四川和芯微电子股份有限公司 | 功率放大电路 |
EP2658117B1 (fr) * | 2012-04-27 | 2014-08-20 | Nxp B.V. | Méthode pour régler la fréquence de commutation ou de phase dans un amplificateur de classe D avec réduction des bruits de type pop |
US9379606B2 (en) * | 2013-05-30 | 2016-06-28 | Apple Inc. | Discrete narrow-band switching frequency avoidance of a switch mode power converter |
KR20150080683A (ko) * | 2014-01-02 | 2015-07-10 | 삼성전자주식회사 | 스위칭 앰프 및 이를 포함하는 음향 기기 |
US9263992B1 (en) * | 2014-09-15 | 2016-02-16 | Apple Inc. | Class D amplifier with variable switching frequency |
KR101607030B1 (ko) | 2014-12-26 | 2016-04-11 | 삼성전기주식회사 | 컨커런트 듀얼밴드 신호 증폭기 |
WO2018211698A1 (fr) * | 2017-05-19 | 2018-11-22 | ヤマハ株式会社 | Dispositif de traitement sonore, et procédé de commande de dispositif de traitement sonore |
DE112018007757T5 (de) | 2018-06-22 | 2021-03-11 | Rohm Co., Ltd. | Schaltnetzteil, integrierte halbleiterschaltungseinrichtung und differentialeingangsschaltung |
CN111913170B (zh) * | 2020-08-12 | 2023-08-08 | 南京英锐创电子科技有限公司 | 信号发送装置 |
JP2022051329A (ja) * | 2020-09-18 | 2022-03-31 | 株式会社東芝 | D級アンプ |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4346349A (en) * | 1979-05-10 | 1982-08-24 | Nippon Gakki Seizo Kabushiki Kaisha | Multi-channel audio power amplifier |
US4542531A (en) * | 1982-03-18 | 1985-09-17 | Nippon Electric Co., Ltd. | Radio transmitter/receivers with non interferring local oscillator frequency |
US4952884A (en) * | 1988-12-28 | 1990-08-28 | Pioneer Electronic Corporation | Pulse width modulation amplifier circuit |
EP0557032A2 (fr) * | 1992-02-18 | 1993-08-25 | Harman International Industries Incorporated | Amplificateur en classe D |
EP0803997A2 (fr) * | 1996-04-26 | 1997-10-29 | Nokia Mobile Phones Ltd. | Procédé et circuit pour générer une fréquence horloge dans un dispositif radio |
WO1998039884A2 (fr) * | 1997-03-03 | 1998-09-11 | Motorola Inc. | Technique de commutation des signaux d'horloge dans un emetteur/recepteur integre |
Family Cites Families (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3816664A (en) * | 1971-09-28 | 1974-06-11 | R Koch | Signal compression and expansion apparatus with means for preserving or varying pitch |
US3909723A (en) * | 1974-08-05 | 1975-09-30 | Motorola Inc | FM/AM radio receiver tuning apparatus |
US4081752A (en) * | 1975-05-30 | 1978-03-28 | Sanyo Electric Co., Ltd. | Digital frequency synthesizer receiver |
US4056808A (en) * | 1976-04-30 | 1977-11-01 | Texas Instruments Incorporated | Ultrasonic remote control receiver suitable for TV receiver |
JPS5643809A (en) * | 1979-09-19 | 1981-04-22 | Hitachi Ltd | Automatic gain controller |
US4415933A (en) * | 1979-12-18 | 1983-11-15 | Fuji Xerox Co., Ltd. | Carrier wave recovery circuit |
US4598422A (en) * | 1984-08-24 | 1986-07-01 | General Electric Company | Harmonic tuning system for radio receivers |
US4896372A (en) * | 1986-02-25 | 1990-01-23 | Varian Associates, Inc. | Pulse width modulator for AM-RF transmitter |
US4673888A (en) * | 1986-09-02 | 1987-06-16 | Electro-Voice, Inc. | Power control system |
US5515889A (en) * | 1991-01-07 | 1996-05-14 | Brand; Randolf W. | Fluid fill nozzle having spillage control |
US5349700A (en) * | 1991-10-28 | 1994-09-20 | Bose Corporation | Antenna tuning system for operation over a predetermined frequency range |
DE4332161A1 (de) * | 1993-09-22 | 1995-03-23 | Thomson Brandt Gmbh | Hochfrequenzempfänger |
US5519889A (en) * | 1994-02-04 | 1996-05-21 | Ford Motor Company | Method and apparatus to conceal RF interference in AM radio reception caused by a switch mode power supply |
US5555451A (en) * | 1994-06-13 | 1996-09-10 | Ford Motor Company | High-quality reception indicating circuit for scanning AM recievers |
US5761614A (en) * | 1996-03-22 | 1998-06-02 | Ericsson Inc. | Automated system and method for optimizing receive system performance |
US5742641A (en) * | 1996-07-18 | 1998-04-21 | International Business Machines Corporation | Apparatus, method and article of manufacture for the dynamic compensation of FM deviation in a FM radio receiver |
-
1999
- 1999-06-29 US US09/342,376 patent/US6587670B1/en not_active Expired - Fee Related
- 1999-12-21 EP EP99403240A patent/EP1014566A3/fr not_active Withdrawn
- 1999-12-21 JP JP11363245A patent/JP2000196376A/ja active Pending
- 1999-12-22 CN CN99122992A patent/CN1267955A/zh active Pending
-
2003
- 2003-05-06 US US10/430,823 patent/US20030194971A1/en not_active Abandoned
- 2003-05-06 US US10/430,756 patent/US6768376B2/en not_active Expired - Fee Related
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4346349A (en) * | 1979-05-10 | 1982-08-24 | Nippon Gakki Seizo Kabushiki Kaisha | Multi-channel audio power amplifier |
US4542531A (en) * | 1982-03-18 | 1985-09-17 | Nippon Electric Co., Ltd. | Radio transmitter/receivers with non interferring local oscillator frequency |
US4952884A (en) * | 1988-12-28 | 1990-08-28 | Pioneer Electronic Corporation | Pulse width modulation amplifier circuit |
EP0557032A2 (fr) * | 1992-02-18 | 1993-08-25 | Harman International Industries Incorporated | Amplificateur en classe D |
EP0803997A2 (fr) * | 1996-04-26 | 1997-10-29 | Nokia Mobile Phones Ltd. | Procédé et circuit pour générer une fréquence horloge dans un dispositif radio |
WO1998039884A2 (fr) * | 1997-03-03 | 1998-09-11 | Motorola Inc. | Technique de commutation des signaux d'horloge dans un emetteur/recepteur integre |
Also Published As
Publication number | Publication date |
---|---|
CN1267955A (zh) | 2000-09-27 |
US6587670B1 (en) | 2003-07-01 |
US20030194970A1 (en) | 2003-10-16 |
US20030194971A1 (en) | 2003-10-16 |
US6768376B2 (en) | 2004-07-27 |
EP1014566A2 (fr) | 2000-06-28 |
JP2000196376A (ja) | 2000-07-14 |
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Legal Events
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